we are prepared to escalate in a big way, says israel's prime minister. when the israeli leaders say they will do anything, whatever it takes, this is what they mean. they are together on the border, ready to invade. 16,000 reserve soldiers reported to ytheir units today. they are waiting for the strangle hold on the south. and tonight, the government may call up reserves, more than 30,000 troops than the u.s. has in afghanistan. martin fletcher, on the israel-gaza border. >> reporter: i'm richard engel in gaza, this palestinian enclave was under attack today. the interior ministry took hits, and did the rocket -- as did the rocket launchers, they targeted individuals. a hamas field commander was killed today. but civilians are dying, too. why is this happening now? hamas is challenging israel with rockets, confident it has real support in the region after the arab spring revolutions. visiting gaza today, the egyptian prime minister, a show of support that would never have happened under mubarak, egypt, the revolution will spare no effort to stop this agg